Speaker: Harish Seshadri
Date: April 02, 2009
Affiliation: Indian Institute of Science, Bangalore, India

Abstract: Sphere theorems give curvature conditions under which a Riemannian n-manifold is diffeomorphic to the n-sphere. Recently two major sphere theorems were proved by Bohm-Wilking and Brendle-Schoen. I will try to give a rough outline of the proofs and describe some interesting consequences.